Midday Decliners

Lexicon Pharmaceuticals LXRX -18% - Late Wednesday the company announced a $50M common stock offering.

Go Pro Inc. GPRO -8% Shares are down following the company's announcement of a 10.36M share offering.

Donaldson Company Inc. DCI -6.3% - Thursday morning the company announced first quarter results missing top and bottom line estimates. Moreover, the company lowered full year revenue guidance.

Keurig Green Mountain GMCR -6% - Shares are down following the company's financial results and CFO departure announcement.